6. Chemical Effect of Electric Current
The chapter discusses the chemical effect of electric current, emphasizing its role in processes like electrolysis, electroplating, and the functionality of electrochemical cells. It highlights the significance of electrolysis in driving non-spontaneous reactions and outlines Faraday's laws that govern the relationship between electric charge and mass changes during electrolysis. Additionally, it explores various applications of these concepts across different industries, including water purification and battery technologies.
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What we have learnt
- The chemical effect of electric current is fundamental to electrolysis, electroplating, and electrochemical cells.
- Electrolysis utilizes electrical energy to initiate non-spontaneous chemical reactions, beneficial in industries such as water purification.
- Faraday's Laws of Electrolysis quantitatively correlate the electric charge passed and the amount of material deposited or liberated during the process.
Key Concepts
- -- Chemical Effect of Electric Current
- Changes that occur in a substance when electric current flows through it, leading to chemical reactions.
- -- Electrolysis
- A process that uses electrical energy to induce a chemical reaction, typically involving the decomposition of compounds.
- -- Electroplating
- The application of electrolysis to deposit a layer of metal on a surface for enhanced properties, such as aesthetics and corrosion resistance.
- -- Electrochemical Cell
- A device that converts chemical energy into electrical energy through redox reactions; can be galvanic (spontaneous) or electrolytic (non-spontaneous).
- -- Faraday's Laws of Electrolysis
- Laws that describe the relationship between the amount of electric charge passed through an electrolyte and the mass of substance deposited or liberated.
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